Question

The length of a football field is closest to (1) 1000 cm (3) 1000 km (2) 1000 dm (4) 1000 mm

Answer 1

The length of a football field is closest to 1000dm, since dm stands for decimeter, which is about one tenth of a meter. Although it should be noted that this is not exact. 

Answer 2

For this case, the first thing you should know is that the length of a football field is around 100 meters.

We must then look for a measure close to this value.

We have the following unit conversion:

1 meter = 10 decimeters

Applying the conversion we have:

$(1000 dm)*(\frac{1}{10} \frac{m}{dm}) = 100 m$

Therefore, the measure closest to a soccer field is:

1000 dm

Answer:

The length of a football field is closest to:

(2) 1000 dm